MINERVE 2011/2012
| Type | Oceanographic cruise |
|---|---|
| Set | This cruise is part of the set MINERVE |
| Ship | L'Astrolabe |
| Ship owner | IPEV |
| Dates | 22/10/2011 - 07/03/2012 |
| Chief scientist(s) | GOYET Catherine |
IMAGES_ESPACE-DEV - UMR 228 Université de Perpignan Via Domitia 52 avenue Paul Alduy 66860 PERPIGNAN |
|
| DOI | 10.17600/11210080 |
| Objective | Estimation of evolution trends of the CO2 system in the southern ocean. The goal of the MINERVE programme (measuring variability of CO2 exchanges at the water-air interface), which is based on oceanographic cruises between Hobart (Australia) and Adelie Land (French base in Antarctica) is to observe and understand the seasonal variations in the partial pressure of CO2 (pCO2), of total inorganic carbon and of total alkalinity in surface waters in association with hydrological and biogeochemical measurements taken in situ and with satellite data (temperature, water colour). RV Astrolabe's logistics trips made it possible to access areas which have rarely been studied and document them to better understand the processes which explain pCO2 variations over time and space on a medium scale in Southern Ocean regions. The data collected during these cruises will provide the basis for estimating the inter-annual variability and the mean variation (trend) of the net CO2 flux at the ocean-atmosphere interface. The observations collected during the MINERVE cruises are also used by other teams to limit atmospheric models and validate biogeochemical ones based on general ocean circulation models which try to simulate the ocean carbon cycle over the medium and the long term. Related projects are PROOF/LEFE (FLAMENCO2) and ORE CARAUS. The dates of days at sea were: from 21/10/2011 to 11/12/2011 and from 19/02/2012 to 07/03/2012. |
